lightning_network_daemon_project lightning_network_daemon 完整性检查值验证不恰当

CVE编号

CVE-2020-26896

利用情况

暂无

补丁情况

N/A

披露时间

2020-10-21

漏洞描述

Prior to 0.11.0-beta, LND (Lightning Network Daemon) had a vulnerability in its invoice database. While claiming on-chain a received HTLC output, it didn't verify that the corresponding outgoing off-chain HTLC was already settled before releasing the preimage. In the case of a hash-and-amount collision with an invoice, the preimage for an expected payment was instead released. A malicious peer could have deliberately intercepted an HTLC intended for the victim node, probed the preimage through a colluding relayed HTLC, and stolen the intercepted HTLC. The impact is a loss of funds in certain situations, and a weakening of the victim's receiver privacy.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://gist.github.com/ariard/6bdeb995565d1cc292753e1ee4ae402d
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002855.html
https://lists.linuxfoundation.org/pipermail/lightning-dev/2020-October/002857.html

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	lightning_network_daemon_project	lightning_network_daemon	*		Up to (excluding) 0.11.0
	运行在以下环境
	应用	lightning_network_daemon_project	lightning_network_daemon	0.11.0	-

CVSS3评分 8.2

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 无
• 影响范围 未更改
• 用户交互 无
• 可用性 无
• 保密性 低
• 完整性 高

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N CWE-ID 漏洞类型 CWE-354 完整性检查值验证不恰当